[INFO] fetching crate mymq 0.1.0...
[INFO] testing mymq-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mymq 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mymq 0.1.0
[INFO] finished tweaking crates.io crate mymq 0.1.0
[INFO] tweaked toml for crates.io crate mymq 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mymq 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mymq 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.5.9
[INFO] [stderr]   Downloaded unicode-ident v1.0.3
[INFO] [stderr]   Downloaded android_system_properties v0.1.4
[INFO] [stderr]   Downloaded redox_syscall v0.1.57
[INFO] [stderr]   Downloaded derive_arbitrary v1.1.3
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded arbitrary v1.1.3
[INFO] [stderr]   Downloaded js-sys v0.3.59
[INFO] [stderr]   Downloaded ipnetwork v0.19.0
[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.82
[INFO] [stderr]   Downloaded syn v1.0.99
[INFO] [stderr]   Downloaded nix v0.25.0
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded libloading v0.6.7
[INFO] [stderr]   Downloaded pcap v0.10.1
[INFO] [stderr]   Downloaded pnet_macros v0.31.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.82
[INFO] [stderr]   Downloaded libc v0.2.132
[INFO] [stderr]   Downloaded pnet v0.31.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.11
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.82
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]   Downloaded pnet_packet v0.31.0
[INFO] [stderr]   Downloaded pnet_base v0.31.0
[INFO] [stderr]   Downloaded pnet_sys v0.31.0
[INFO] [stderr]   Downloaded pnet_datalink v0.31.0
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded serde v1.0.144
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.10
[INFO] [stderr]   Downloaded once_cell v1.13.1
[INFO] [stderr]   Downloaded iana-time-zone v0.1.46
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.82
[INFO] [stderr]   Downloaded ctrlc v3.2.3
[INFO] [stderr]   Downloaded pnet_macros_support v0.31.0
[INFO] [stderr]   Downloaded pnet_transport v0.31.0
[INFO] [stderr]   Downloaded cityhash-rs v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 141faaf185a0d2c929be6038bd4a02d7f5681c6a984526ab6b3e03e7cd3d54b1
[INFO] running `Command { std: "docker" "start" "-a" "141faaf185a0d2c929be6038bd4a02d7f5681c6a984526ab6b3e03e7cd3d54b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "141faaf185a0d2c929be6038bd4a02d7f5681c6a984526ab6b3e03e7cd3d54b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141faaf185a0d2c929be6038bd4a02d7f5681c6a984526ab6b3e03e7cd3d54b1", kill_on_drop: false }`
[INFO] [stdout] 141faaf185a0d2c929be6038bd4a02d7f5681c6a984526ab6b3e03e7cd3d54b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9e3e2e1242093034dc602b2e8cdb3e91eab4a2746b848a719639f418fab45b8
[INFO] running `Command { std: "docker" "start" "-a" "b9e3e2e1242093034dc602b2e8cdb3e91eab4a2746b848a719639f418fab45b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling cityhash-rs v1.0.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling uuid v1.1.2
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling mymq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(backtrace_frames)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | #![feature(backtrace)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | #![feature(error_iter)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | #![feature(map_first_last)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![feature(result_flattening)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]   --> src/broker/spinlock.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[cfg(feature = "debug")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]    = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]   --> src/broker/spinlock.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[cfg(feature = "debug")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]    = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]    --> src/broker/spinlock.rs:100:29
[INFO] [stdout]     |
[INFO] [stdout] 100 |                     if cfg!(feature = "debug") {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]     = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]    --> src/broker/spinlock.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |             if cfg!(feature = "debug") {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]     = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]    --> src/broker/spinlock.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |             if cfg!(feature = "debug") {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]     = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]    --> src/broker/spinlock.rs:139:29
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     if cfg!(feature = "debug") {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]     = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `debug`
[INFO] [stdout]    --> src/broker/spinlock.rs:153:21
[INFO] [stdout]     |
[INFO] [stdout] 153 |             if cfg!(feature = "debug") {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt`
[INFO] [stdout]     = help: consider adding `debug` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `backtrace` has been stable since 1.65.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | #![feature(backtrace)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `result_flattening` has been stable since 1.89.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![feature(result_flattening)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `map_first_last` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | #![feature(map_first_last)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mymq` (lib) due to 5 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b9e3e2e1242093034dc602b2e8cdb3e91eab4a2746b848a719639f418fab45b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9e3e2e1242093034dc602b2e8cdb3e91eab4a2746b848a719639f418fab45b8", kill_on_drop: false }`
[INFO] [stdout] b9e3e2e1242093034dc602b2e8cdb3e91eab4a2746b848a719639f418fab45b8
